1. Evaluación de coagulantes naturales para el tratamiento de aguas residuales domésticas
- Author
-
Lida Esperanza Ruiz Martinez, Sandra Liliana Gomez Ayala, Juan Sebastian Barreto Pardo, and Diana Karina Vargas Moncada
- Subjects
lcsh:GE1-350 ,Chemistry ,Phosphate buffered saline ,turbiedad ,lcsh:S ,dosis optima ,02 engineering and technology ,General Medicine ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,01 natural sciences ,color ,lcsh:Agriculture ,Primary treatment ,ensayo de jarras ,0210 nano-technology ,Humanities ,lcsh:Environmental sciences ,0105 earth and related environmental sciences - Abstract
espanolEl desarrollo economico descontrolado y la sobreexplotacion de los recursos naturales han aumentado los niveles de contaminacion sobre el recurso hidrico a pesar que existen diferentes tecnologias para el tratamiento de residuos liquidos, uno de los mas utilizados es el tratamiento primario avanzado, el cual consiste en la coagulacion/floculacion y sedimentacion de materiales particulados presentes en el agua. Este tipo de tratamiento habitualmente se ejecuta haciendo uso de polielectrolitos sintetizados quimicamente. En el presente trabajo se evaluo la eficiencia que tienen los coagulantes naturales extraidos de la semilla del aguacate y del mucilago del cafe en el tratamiento primario avanzado de aguas residuales, se determino el desempeno de cada extracto en terminos de reduccion de color y turbiedad en el tratamiento de aguas residuales domesticas. Los resultados obtenidos senalan que el extracto de la semilla del aguacate da lugar al aumento tanto en turbiedad como en coloracion, por su parte el mucilago del cafe permitio remover el 65,29% de la turbiedad, indicando que este compuesto puede servir como un coagulante preliminar o auxiliar en el proceso de tratamiento primario de aguas residuales. EnglishCoagulation / flocculation and sedimentation of particles present in the water are part of the advanced primary treatment, which is the most commonly used for the removal of contaminating particles present in waters with high turbidity levels. That is why, in this investigation, a comparison was made between the most commonly used commercial coagulant (aluminum sulfate) and the natural coagulants extracted from the avocado seed and the coffee mucilage to treat the waters of La Guayacana creek located in the municipality of El Socorro-Santander, for that purpose pitcher tests were carried out and the efficiency of each of the coagulants mentioned was determined, in terms of color and turbidity reduction. The results obtained indicate that the coagulant type C (avocado seed) presented a removal of 44.27% in turbidity, meanwhile the coagulant type B (coffee mucilage and phosphate buffer solution) was the coagulant with better results and allowed to remove 64.29% of the turbidity and 52.20% of color, indicating that this extract can serve as a preliminary or auxiliary coagulant in the process of primary water treatment that has considerable turbidity values.
- Published
- 2019